Finding the Fourth Proportional to 124,658.24, 172,027.36 and 68,069.60
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Solution
The fourth proportional to 124,658.24, 172,027.36 and 68,069.60 is: 93,935.50
Step by Step Solution
- Step 1: Write the proportion equation
124,658.24 : 172,027.36 = 68,069.60 : x - Step 2: Convert to fraction form
124,658.24/172,027.36 = 68,069.60/x - Step 3: Cross multiply
124,658.24x = 172,027.36 × 68,069.60 - Step 4: Simplify right side
124,658.24x = 11,709,833,584.26 - Step 5: Solve for x
x = 11,709,833,584.26/124,658.24 - Step 6: Final answer
x = 93,935.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.